在编译openocd环境的基础上，安装下述库，
pacman -S mingw-w64-x86_64-gdb
pacman -S bison
/home/riscv-gnu-toolchain/riscv-gdb/gdb/ada-exp.y: In function ‘int ada_parse(parser_state*)‘:
/home/riscv-gnu-toolchain/riscv-gdb/gdb/ada-exp.y:736:15: error: ‘yyin‘ was not declared in this scope; did you mean ‘yyrline‘?
/home/riscv-gnu-toolchain/riscv-gdb/gdb/ada-exp.y:736:3: error: ‘lexer_init‘ was not declared in this scope; did you mean ‘pex_init‘?
In file included from /home/riscv-gnu-toolchain/riscv-gdb/gdb/ada-exp.y:56:
/home/riscv-gnu-toolchain/riscv-gdb/gdb/ada-exp.y: At global scope:
[原创]RISC-V系列学习之Windows本地编译toolchain
原文：https://www.cnblogs.com/ifpga/p/14729044.html